Mold for type-forming machines



J. c. NoRwooD ET AL MOLD FOR TYPE FORMING MACHINES Jan. 18, 1927.

Filed August 26, 1925' IN VEN TOR.

.5 above set forth.

Patented Jan. 18,1927.

UNITED. STATES PATENT OFFICE.

JOSEPH G. NORWOOD AND EDWARD B. HALLAUER, OF SAN FRANCISCO, CALIFORNIA.

MOLD FOR TYPE-FORMING MACHINES.

Application filed August 26, 1925. Serial No. 52,630.

Thisinvention relates to improvements in molds for type forming machines.

The principal object of this invention is to produce amold from which aline-of-type 5 :for a multigraph machine may be automati cally ejected from a line cf-type machine.

Another objectof this invention is to pro duce a mold which may bereadily adapted to the ordinary line-of-type casting machine, one whichmay occupy the same relative space as now occupied by, the molds, one which will be simple in construction and therefore cheap to manufacture.

A still further object is to form a line-oftype which may be broken from the carry ing slug and then be used in a multigraphing machine which now commonly employs separate type in counterdistinction to lineof-type.

An additional object is to produce a line of-type having such a conformation that the same will permit of the automatic ejection from the molds.

Other objects and advantages will be apparent during the course of the following description! In the accompanying drawings forming a part of this specification and in which like numerals are employed to designate like parts throughout the same,

Figure I is a front plan View of the molds as employed in producing our invention,

- Figure II is a cross section taken on the line IIII of Figure I,

Figure III is an enlarged detail end vie of a line-of-type as the same would appear when cast in our improved mold, and

Figure IV is a fragmentary detail view showing the manner in which the line-oftype is ejected from the molds.

In the setting up of multigraph letters it has been the standard practice for the operator to collect individual type into a slide. then insert them in the multigraph machine. This is a tedious process and at the same time compels the multigraph operator to carry a large stock of type. By producing means whereby type may be cast upon a line-of-type machine which line-oftype produced thereby may be severed from the main slug body and in this way we are enabled to produce a line-of-type which may be readily emplo ed in a multigraphing machine thereby obviating all the diflicul'ties To the face of this gear is attached a lower mold section 6 and an upper mold section 7. The lower mold section 6 carries a die 8 while the upper mold section 7 carries a die 9. The mold section 6' is firmly mounted upon the gear 5 by screws 11, while the upper mold section 7 is slidably retained upon the mold section 6 by upstanding lugs 12, one of which is located at each end of the mold.

These lugs are straddled by the bifurcated ends 13 of the upper mold section which bifurcated ends are adapted to contact stops 14 securely attached to the gear 5. These stops limit the upward movement of the mold*section 7.

At 16 we have shown downwardly extending lugs which enter the mold section 6. These lugs serve to define the length of the slug. Referring now to Figure II it will be noted that the opening 17 extends through the gear body 5 and communicates with the space 18 between the mold sections. It is into this space that molten metal is forced for the purpose of casting the line-of-type.

Referring now to Figures III and IV it' will be noted that the metal forced between the mold sections will assume a shape as shown at 19 (see Figure III). As soon as. the metal has been cast, an ejector 21 engagesthe rear of the slug pushing the same forwardly. This results in the cam surfaces 22 and 23 acting upon the cam surfaces 24' and 26 of the dies 8 and 9, respectively, in such a manner as to cause the mold sections 6 and 7 to move apart as shown in Figure IV.

The actual movement is accomplished by the lifting of the mold section 7. It will also be noted that the surfaces 27 and 28 of the line-of-type are formed upon a bevel so as to co-act with the bevel surfaces 29 and 31 of the dies 8 and 9. As the width of the slot in the-multigraph machine is equal to the width of the portion 32 of the line-oftype it will beapparent that when the same is severed at 33 from the slug 19 that it will be readily slid into the slot of the multigraph machine and that the same cannot be removed therefrom, except by sliding the same laterally or in the same manner in which it was placed therein.

Therefore, the bevelling 27 and 28 will in no manner affect the utility of the line-oftype with respect to its use in the multigraph machine.

It will thus be seen that by producing a mold of this character, it is possible to produce a line-of-typewhich will have all of the advantages of an ordinary line-of-type and yet one which will be automatically ejected from the molds, acondition which is impossible when the molds are formed with their surfaces at a right angle as is common practice.

It is to be understood that the form of our invention herewith SllOWIFZllld described is to be taken as a preferred example of the same, and that various changes in the shape, size and arrangement of parts ma be resorted to Without departing from t 1e spirit of the invention or the scope of the subjoined claim.

lHaving thus described our invention, we 0 a1m:-

In a device of the character described, a fixed mold, a die positioned in said fixed mold, a second mold positioned above said first mentioned mold and adapted to be moved into close proximity therewith, a die positioned in said second mentioned mold, means for casting a line-of-type slug between said molds, said dies having parallel cam-shaped surfaces so as to form cam surfaces on said line-of-type slug, said cam surfaces being so positioned as to cause the separation of said molds when said slug is e ected in a transverse direction.

In testimony whereof We aflix our signatures JOSEPH C. NORWOOD.

EDWARD B. HALLAUER. 

